[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Feb 10 22:20:37 UTC 2024
IPv4 R&E Routing Table Report 22:20 GMT Sat 10 Feb, 2024
IPv4 BGP Table (R&E) as seen at ESnet.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/
Analysis Summary
----------------
BGP routing table entries examined: 18657
Prefixes after maximum aggregation (per Origin AS): 10570
Deaggregation factor: 1.77
Unique aggregates announced (without unneeded subnets): 11678
Number of IPv4 prefixes with a valid ROA: 5828
Number of IPv4 prefixes with an invalid ROA: 34
Number of IPv4 prefixes with no ROA: 12795
Total ASes present in the Internet Routing Table: 2717
Prefixes per ASN: 6.87
Origin-only ASes present in the Internet Routing Table: 2357
Origin ASes announcing only one prefix: 1055
Transit ASes present in the Internet Routing Table: 360
Transit-only ASes present in the Internet Routing Table: 64
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 14
Max AS path prepend of ASN ( 47805) 11
Prefixes from unregistered ASNs in the Routing Table: 18
Number of instances of unregistered ASNs: 18
Number of 32-bit ASNs allocated by the RIRs: 43596
Number of 32-bit ASNs visible in the Routing Table: 631
Prefixes from 32-bit ASNs in the Routing Table: 1925
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 0
Number of addresses announced to Internet: 176192256
Equivalent to 10 /8s, 128 /16s and 123 /24s
Percentage of available address space announced: 4.8
Percentage of allocated address space announced: 4.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2252
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4227
Total APNIC prefixes after maximum aggregation: 2135
APNIC Deaggregation factor: 1.98
Prefixes being announced from the APNIC address blocks: 4228
Unique aggregates announced from the APNIC address blocks: 2401
APNIC Region origin ASes present in the Internet Routing Table: 482
APNIC Prefixes per ASN: 8.77
APNIC Region origin ASes announcing only one prefix: 210
APNIC Region transit ASes present in the Internet Routing Table: 44
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 180
Number of APNIC addresses announced to Internet: 35325184
Equivalent to 2 /8s, 27 /16s and 5 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 8380
Total ARIN prefixes after maximum aggregation: 4923
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 8410
Unique aggregates announced from the ARIN address blocks: 5508
ARIN Region origin ASes present in the Internet Routing Table: 1302
ARIN Prefixes per ASN: 6.46
ARIN Region origin ASes announcing only one prefix: 465
ARIN Region transit ASes present in the Internet Routing Table: 166
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 214
Number of ARIN addresses announced to Internet: 80248832
Equivalent to 4 /8s, 200 /16s and 128 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3445
Total RIPE prefixes after maximum aggregation: 2787
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 3434
Unique aggregates announced from the RIPE address blocks: 2827
RIPE Region origin ASes present in the Internet Routing Table: 659
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 298
RIPE Region transit ASes present in the Internet Routing Table: 98
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 145
Number of RIPE addresses announced to Internet: 53850624
Equivalent to 3 /8s, 53 /16s and 178 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1335
Total LACNIC prefixes after maximum aggregation: 534
LACNIC Deaggregation factor: 2.50
Prefixes being announced from the LACNIC address blocks: 1333
Unique aggregates announced from the LACNIC address blocks: 717
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 8.49
LACNIC Region origin ASes announcing only one prefix: 57
LACNIC Region transit ASes present in the Internet Routing Table: 24
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67
Number of LACNIC addresses announced to Internet: 4095744
Equivalent to 0 /8s, 62 /16s and 127 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1252
Total AfriNIC prefixes after maximum aggregation: 176
AfriNIC Deaggregation factor: 7.11
Prefixes being announced from the AfriNIC address blocks: 1252
Unique aggregates announced from the AfriNIC address blocks: 225
AfriNIC Region origin ASes present in the Internet Routing Table: 49
AfriNIC Prefixes per ASN: 25.55
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 8
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 2671872
Equivalent to 0 /8s, 40 /16s and 197 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 590 2162 464 SINET-AS Research Organization of Infor
7497 439 180 23 CSTNET-AS-AP Computer Network Informati
1237 189 74 139 KREONET-AS-KR KISTI, KR
58647 180 18 2 KAGAWAU-AS Kagawa University, JP
7575 177 329 119 AARNET-AS-AP Australian Academic and Re
55824 127 19 18 NKN-CORE-NW NKN Core Network, IN
4538 110 2368 68 ERX-CERNET-BKB China Education and Rese
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T
4621 70 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
668 203 648 172 DNIC-AS-00668, US
376 200 162 150 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
2152 146 507 95 CSUNET-NW, US
18558 141 18 4 NETBLK-RCOEK, US
81 125 473 31 NCREN, US
270 114 328 78 AS270, US
23024 109 7 22 OCDE, US
2920 103 34 7 LACOE, US
237 89 544 54 MERIT-AS-14, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1899 249 DFN Verein zur Foerderung eines Deutsch
786 184 1767 181 JANET Jisc Services Limited, GB
8895 132 24 4 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch
1103 94 1247 82 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 27 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
3267 79 44 68 RUNNET, RU
553 78 462 78 BELWUE BelWue-Koordination, DE
1930 78 88 73 RCCN Fundacao para a Ciencia e a Tecnol
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28391 154 10 67 Universidad Juarez Autonoma de Tabasco,
1916 149 176 42 Rede Nacional de Ensino e Pesquisa, BR
11340 106 24 50 Red Universitaria Nacional, CL
271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
4270 47 16 1 Red de Interconexion Universitaria, AR
61468 43 3 14 CEDIA, EC
2715 42 99 32 Fundacao Carlos Chagas Filho de Amparo
28614 38 2 2 Fundacao Universidade Regional de Blume
1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 479 82 3 KENET-AS, KE
2018 373 319 70 TENET-1, ZA
327687 160 28 3 RENU, UG
8094 47 48 18 PUKNET, ZA
327700 43 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
37654 11 1 6 RwEdNet-AS, RW
36982 8 33 8 UCT, ZA
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 590 2162 464 SINET-AS Research Organization of Infor
36914 479 82 3 KENET-AS, KE
7497 439 180 23 CSTNET-AS-AP Computer Network Informati
2018 373 319 70 TENET-1, ZA
680 283 1899 249 DFN Verein zur Foerderung eines Deutsch
668 203 648 172 DNIC-AS-00668, US
376 200 162 150 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
1237 189 74 139 KREONET-AS-KR KISTI, KR
786 184 1767 181 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 479 476 KENET-AS, KE
7497 439 416 CSTNET-AS-AP Computer Network Information Cente
2018 373 303 TENET-1, ZA
5786 197 196 UPRENET, PR
58647 180 178 KAGAWAU-AS Kagawa University, JP
327687 160 157 RENU, UG
18558 141 137 NETBLK-RCOEK, US
8895 132 128 ISU Internet Services Unit ISU, SA
55824 127 109 NKN-CORE-NW NKN Core Network, IN
1916 149 107 Rede Nacional de Ensino e Pesquisa, BR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
11570 UNALLOCATED 63.225.1.0/24 40498 ABQG, US
26303 UNALLOCATED 76.165.220.0/24 32440 LONI, US
26303 UNALLOCATED 76.165.221.0/24 32440 LONI, US
26303 UNALLOCATED 76.165.222.0/24 32440 LONI, US
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US
11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:0 /10:0 /11:0 /12:0
/13:0 /14:35 /15:121 /16:2017 /17:429 /18:447
/19:582 /20:844 /21:874 /22:1493 /23:1540 /24:10275
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 464 479 KENET-AS, KE
8895 127 132 ISU Internet Services Unit ISU, SA
23024 52 109 OCDE, US
32440 38 62 LONI, US
327700 38 43 MoRENet, MZ
3267 36 79 RUNNET, RU
18632 34 66 VOLCANO-VISION, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
25977 30 44 HCCS, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:5 12:2 14:87
18:44 23:8 24:3 31:1 35:7 38:10
40:1 41:175 42:10 44:6 45:39 46:5
47:1 49:7 50:8 52:1 59:3 60:6
61:3 62:8 63:37 64:44 65:19 66:60
67:45 68:20 69:17 70:2 71:1 72:7
74:54 76:42 77:11 78:3 79:10 80:12
81:24 82:7 83:7 84:8 85:31 86:1
87:1 89:10 91:42 92:2 93:4 94:2
95:2 97:3 98:2 101:2 102:36 103:205
104:77 107:16 108:8 109:4 114:24 116:6
117:61 119:19 121:10 123:8 124:40 125:5
128:82 129:44 130:86 131:65 132:59 133:155
134:109 136:196 137:135 138:57 139:5 140:38
141:3 142:35 143:23 144:28 145:2 146:133
147:59 148:195 149:12 150:40 151:14 152:130
153:13 154:31 155:63 156:67 157:18 158:35
159:115 160:34 161:16 162:30 163:72 164:13
165:47 166:2 167:13 168:88 169:7 170:104
171:1 172:3 173:7 174:1 175:17 177:6
179:11 180:15 181:1 182:1 184:3 185:46
186:3 187:17 188:14 189:3 190:17 191:13
192:1480 193:258 194:122 195:63 196:200 197:329
198:506 199:288 200:265 201:36 202:571 203:405
204:373 205:130 206:201 207:163 208:78 209:122
210:184 211:13 212:159 213:5 214:8 216:92
217:10 218:22 219:5 220:17 222:2 223:4
End of report
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